This science fair project investigates why the number of visible stars changes from place to place.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Test your friends to find out if you can replicate the placebo effect's incredible results.

This science fair project idea produces varying pitches of sound.

In this project, the affects of vitamin E are observed on a rose petal.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Get a better understanding of water content by dehydrating carrots.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

In this design challenge, your child will create a parachute for a small toy using typical household items.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

This science fair project idea explores whether talking to a plant will help it grow.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.